This is the second part of a trilogy of videos Heffernan has created for BBC 2; the first, called “Wavelight,” is online as well. He and his collaborator, Harun Mehmedinovic, are also making a video about the effects of light pollution. Called “Skyglow,” it’ll be on Kickstarter in early April. Stay tuned for that.

In the meantime, take a look at these other amazing videos by Heffernan: